| Company type | Bank |
|---|---|
| Industry | Financial services |
| Founded | 1960 |
| Defunct | 1982 |
| Fate | Bankrupt after making energy-related loans |
| Headquarters | , |
Area served | Oklahoma |
Key people | Bill Patterson (energy-lending chief that was convicted) |
| Products | Loans for oil extraction, banking services |
| Owner | The Rooney family |
Penn Square Bank was a small American commercial bank located in Oklahoma City, Oklahoma. The bank made a large number of poorly underwritten energy-related loans that it sold to other banks. Losses on these loans led to significant financial problems in these banks. Penn Square Bank declared bankruptcy in July 1982.[1]